Here's that 1967 Buick Skylark convertible in Arctic White we saw motoring up College Avenue last month. A peek at the dash shows us it has the 2-speed Super Turbine 300 automatic transmission.
The base powerplant in the convertible was the 300cid 2bbl Buick V-8 rated at 210bhp SAE gross. If you wanted the Super Turbine transmission, you could also get an optional 340cid 4bbl "Power Pack" V-8, basically a stroked 300 that also bumped the compression ratio from 9.0:1 to 10.25:1, rated at 260bhp SAE gross.
Like the all-alloy 215 to which they were related, the 300/340 Buick small blocks had aluminum heads, intake manifolds, and accessories, and were fairly light for Detroit V-8s at only a little over 400 lbs.
The photos here were shot with the 36MP Nikon D800 and should embiggenate nicely. You can read the climate controls on the dash and everything.
